<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>firstChild</title>
    </head>
    <body>

        <p><font color="gray">请点击下边的文字……</font>
        <ul>
            <li id="DT" onclick="changeText()">您好吗?</li>
            <li id="DH" onclick="changeHtml()">您姓什么?</li>
            <li onclick="back()">恢复原样!</li>
        </ul>
        <script type="text/javascript" src="innerText.js"></script>
    </body>
</html>